fatal: Not a git repository (or any of the parent directories): .git

Question

I got the following when I try to git push to heroku

fatal: Not a git repository (or any of the parent directories): .git

I try to follow

Answer 1

update sep 2020

first, you have git repo required to create a heroku app

git init
git add .
git commit -m "initial commit"
heroku create
git push heroku master

how your code uploading to Heroku